Laying large tiles - this is how it works

Laying large tiles - this is how it works: tiles

It used to be clear: small tiles were laid in small rooms, large tiles in large rooms.

These Rule of thumb still has some legitimacybut in the end, it is your taste that matters in the design of your rooms, and in general, it is Trend towards larger tile formats.

Technically it is today too no problem for do-it-yourselfers large format tiles up to Lay edge lengths of 60 x 60 cm - The development of the adhesives makes it possible.

However, some basic rules should be considered. As lay large wall tiles or large floor tiles yourself, we show you here and immediately supply the necessary know-how.

Material and tools

  • Solvent-free substrate
  • primer
  • Waterproofing and sealing tapes for shower and bath
  • Highly flexible tile adhesive or natural stone glue
  • Highly flexible grout or natural stone grout
  • Sanitary silicone or natural stone silicone
  • Tile Breaking Pincer
  • tile hammer
  • Parrot nose pliers
  • Tile cutter, if necessary with hole attachment, or wet cutting device
  • Possibly. separate tile hole device
  • angle
  • spirit level
  • Tile corners with guide cord
  • tile crosses
  • notched trowel

Lay large format tiles - that's how it works

Prepare underground

Make sure the Laying ground is clean, dry, firm and resistant to bending, The bigger the tiles, the more important the last point. If necessary, clean the Untreated floor or screed and remove loose dirt.

The Substrate should be uniformly absorbentto ensure the adhesion of the adhesive. Heavily absorbent substrates such as gypsum, gypsum plasterboard, aerated concrete, cement plaster or fresh screed remove water from the adhesive too quickly. That's why she is co-primed solvent-free substrate.

Substrates such as chipboard or OSB boards, old tile coverings or tight layers of paint often do not suck at all, In order for the glue to hold well, they are pretreated with a primer.

Seal the substrate in the spray area

Laying large tiles - this is how it works: this

Structural damage caused by water penetration can be prevented with a special coating and the associated sealing tapes. Corresponding products are available for inside and outside.

Structural damage caused by water penetration can be with a special coating and the associated sealing tapes prevent. Corresponding products are available for inside and outside.

In the immediate spray area of ​​a bath, so around the shower or tub, one prevents with a paintable sealthat water penetrates the walls and causes structural damage. (Further information on this can also be found in our instructions on waterproofing the bathroom.)

First treat the surface with solvent-free substrate. You need something like that 200 ml deep ground per square meter area.

After drying, the sealing coat is applied fully and completely. For most sealing systems consisting of paint and associated sealing tape, you put in the corners and at connections now the special band in the still wet coat. After drying, a second coat is applied, which also covers the sealing tapes.

Deviations are possible here - So always follow the instructions of the system manufacturer!

Lay tiles

On the pretreated and sealed base, it is best to lay large tiles with a highly flexible tile adhesive. ever larger a tile, the more sensitive it is to component motion or vibration - flexible adhesives prevent damage by removing the tiles.

Laying large tiles - this is how it works: this

Both tile adhesive and joint mortar should be high-quality tempered and highly flexible. Both are mixed from dry mixes.

For natural stone slabs one uses natural stone glue. Your Ingredients are chemically adapted to natural stonesin that the plates do not discolor.

Also the Grout mortar should be highly flexible his and suitable for wide joints from 2 to 15 mm.

Laying large tiles - this is how it works: laying

After the maturing period according to the manufacturer's instructions, the mortars can be processed. Here the combing of the tile adhesive.

Expansion and connection joints become the Finally sprayed out with sanitary silicone, For natural stones, there are also special products such as natural stone grout and natural stone silicone.

Laying large tiles - this is how it works: this

If the tile is also provided with tile adhesive on the back, a largely void-free installation succeeds when it is placed in the adhesive bed previously prepared with the toothed spatula.

Tips & Tricks for large tiles

Especially at Large formats on the floor is one with a void-free installation on the safe side.

It can be reached by applying the adhesive to the substrate Scouring comb, which is a so-called Mittelbettzahnung or, if the ground is very level, 10 x 10 mm.

In addition, the tile back is provided with adhesive. At the Insertion into the adhesive bed creates a largely void-free adhesive layerAt the same time, slight unevenness of the tiles and the ground is compensated.

Large tiles are usually quite heavy. So you do not slip on the wall, you should the Provide joints with wedges that both keep the planned joint size clear as well as the tiles against each other. For very even tiles here are also crosshairs helpful.

To the adjacent side walls as well between floor and wall and possibly between wall and ceiling are also joints schedule. This avoids tensions in the tiled area.

5 mm should be added to this movement joint large tile formats already be wide, less than 2.5 mm you should not investto be able to compensate even smaller dimensional tolerances.

Cut large floor and wall tiles

If the length of an existing tile cutter is sufficient, you can cut large-format tiles in many cases. Attention: depending on Planned arrangement and diagonal cuts are necessary, then it gets short with the length of large formats quickly.

Laying large tiles - this is how it works: works

When working with a tile cutter, the glazed surface of the tile is scratched in the first operation.

With thick split tiles or certain porcelain stoneware tiles cutters are quickly overwhelmed. Also Blanks of natural stone slabs or mosaics can be problematic become.

Laying large tiles - this is how it works: laying

When diagonal separation is already a very large tile cutter needed. Here you can alternatively switch to a glass cutter and a steel ruler.

An alternative here are wet cutters or stone cutting machines. They allow that comfortable yet precise cutting of tiles and thus offer an advantage over angle grinders.

Laying large tiles - this is how it works: tiles

For very hard or thick tiles you will not get far with the traditional tile cutter. Professionals use diamond cutters to work wet. Do-it-yourselfers can make do with an angle grinder complete with a suitable disc or hire professional tailors in tool rental.

Size and performance of a wet cutter are also a question of the purse. However, do-it-yourselfers do not need to acquire a professional device and therefore reach their destination with a manageable budget.

Break big tiles

Laying large tiles - this is how it works: works

As far as possible, you should also use the tile cutter to break, which is the fastest and easiest. But for thick, hard plates often a lot of physical strength is necessary, then it works better with the method described on the left.

During the first act when splitting a large format - namely the scoring of the glaze - is often quite easy, it can actual breaking quite tedious become. The following procedure has proven useful:

1. The glaze is scratched with a glass cutter or a tile cutter.

2. Lay the tile on a firm surface.

3. At one end, place a larger (carpenter's) nail under the cut.

4. Support your hands to the right and left of the cut on the tile and press gently until the cut breaks.

5. Use fine sandpaper to smooth the fracture surface.

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Video Board: Porcelain tiles 2'x4' (24